21552390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2371}}^1$

素因数の和:2485

約数の個数: 48

約数和(自身を含む): 56614896

約数和(自身を除く): 35062506

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 101, 202, 303, 505, 606, 909, 1010, 1515, 1818, 2371, 3030, 4545, 4742, 7113, 9090, 11855, 14226, 21339, 23710, 35565, 42678, 71130, 106695, 213390, 239471, 478942, 718413, 1197355, 1436826, 2155239, 2394710, 3592065, 4310478, 7184130, 10776195, 21552390]

約数ペア:

[(1, 21552390), (2, 10776195), (3, 7184130), (5, 4310478), (6, 3592065), (9, 2394710), (10, 2155239), (15, 1436826), (18, 1197355), (30, 718413), (45, 478942), (90, 239471), (101, 213390), (202, 106695), (303, 71130), (505, 42678), (606, 35565), (909, 23710), (1010, 21339), (1515, 14226), (1818, 11855), (2371, 9090), (3030, 7113), (4545, 4742)]